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CVE-2023-39903

5.9 · MEDIUM

An issue was discovered in Fujitsu Software Infrastructure Manager (ISM) before 2.8.0.061.

Published Aug 7, 2023CWE-312EPSS 0.14%

Overview

CVE-2023-39903 is a medium-severity vulnerability. It was published on August 7, 2023 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

An issue was discovered in Fujitsu Software Infrastructure Manager (ISM) before 2.8.0.061. The ismsnap component (in this specific case at /var/log/fujitsu/ServerViewSuite/ism/FirmwareManagement/FirmwareManagement.log) allows insecure collection and storage of authorization credentials in cleartext. That occurs when users perform any ISM Firmware Repository Address setup test (Test the Connection), or regularly authorize against an already configured remote firmware repository site, as set up in ISM Firmware Repository Address. A privileged attacker is therefore able to potentially gather the associated ismsnap maintenance data, in the same manner as a trusted party allowed to export ismsnap data from ISM. The preconditions for an ISM installation to be generally vulnerable are that the Download Firmware (Firmware Repository Server) function is enabled and configured, and that the character \ (backslash) is used in a user credential (i.e., user/ID or password) of the remote proxy host

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsecurity.ts.fujitsu.com/IndexDownload.asp?SoftwareGuid=a0131919-6d84-43b4-800e-d7f78200a70fRefsecurity.ts.fujitsu.com/ProductSecurity/content/Fujitsu-PSIRT-ISS-IS-2023-071410-Security-Notice.pdfRefsecurity.ts.fujitsu.com/IndexDownload.asp?SoftwareGuid=a0131919-6d84-43b4-800e-d7f78200a70fRefsecurity.ts.fujitsu.com/ProductSecurity/content/Fujitsu-PSIRT-ISS-IS-2023-071410-Security-Notice.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2023-39903?

CVE-2023-39903 is a medium-severity vulnerability. It was published on August 7, 2023 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2023-39903?

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-39903?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-39903?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-39903 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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